CompTIA JK0-016 Online Practice Questions and Exam Preparation

CompTIA JK0-016 Online Questions & Answers

• Question 261:

  An administrator edits the network firewall configuration. After editing the configuration, the administrator logs the date and time of the edit and why it was performed in the firewall documentation. Which of the following BEST describes these actions?

  A. Asset management
  B. Baselines
  C. Network maps
  D. Change management
  D. Change management

• Question 262:

  A technician is troubleshooting a desktop computer that will not power on. After replacing the power supply, the technician tries to start the desktop, but it still fails to power on. Which of the following troubleshooting steps should the technician do NEXT?

  A. Question users to determine if anything has changed
  B. Re-establish theory of probable cause
  C. Escalate problem to upper management
  D. Document replacement of power supply
  B. Re-establish theory of probable cause

• Question 263:

  Users are reporting wired connectivity drops in a new office with brand new CAT6 infrastructure. Which of the following tools should a technician use to BEST troubleshoot this issue?

  A. OTDR
  B. Protocol analyzer
  C. Toner probe
  D. Cable certifier
  D. Cable certifier

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  A cable certifier is an electronic device used to verify the source of electric current, voltage and a switching matrix used to connect the current source and the volt meter to all of the contact points in a cable.

• Question 264:

  Which of the following connectors is usable in SFP modules?

  A. ST
  B. LC
  C. LX
  D. SX
  B. LC

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  LC connector is used in SFP modules.

  

• Question 265:

  A user moves from one office to another. When the user logs onto their computer, it has local access to shared drives but no Internet access. A technician determines that the computer has an IP address in the wrong subnet. Which of the following is MOST likely the cause?

  A. Incorrect VLAN
  B. MTU mismatch
  C. Hijacked HOSTS file
  D. Missing routes
  A. Incorrect VLAN

• Question 266:

  Several users are reporting connectivity issues with their laptops. Upon further investigation, the network technician identifies that their laptops have been attacked from a specific IP address outside of the network. Which of the following would need to be configured to prevent any further attacks from that IP address?

  A. Port security
  B. IDS
  C. Firewall rules
  D. Switch VLAN assignments
  C. Firewall rules

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  Firewall rules block or allow specific traffic passing through from one side of the router to the other. Inbound rules (WAN to LAN) restrict access by outsiders to private resources, selectively allowing only specific outside users to access specific resources. Outbound rules (LAN to WAN) determine what outside resources local users can have access to.

• Question 267:

  Which of the following is used to register and resolve IP addresses with their plain language equivalents?

  A. Proxy server
  B. DNS server
  C. Brouter equipment
  D. DHCP server
  B. DNS server

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  DNS server translate (resolution) the human-memorable domain names and hostnames into the corresponding numeric Internet Protocol (IP) addresses.

• Question 268:

  Which of the following ports is used by Telnet?

  A. 21
  B. 23
  C. 80
  D. 143
  B. 23

• Question 269:

  Which of the following routing protocols can be utilized as both an IGP and EGP?

  A. EIGRP
  B. RIP
  C. IGRP
  D. RIPv2
  A. EIGRP

• Question 270:

  A network technician is doing a wireless audit and finds an SSID that does not match the company's SSID. The company uses the SSID of ABC123, and the SSID the technician found is Default. Which of the following threats did the network technician find?

  A. AP isolation
  B. DDoS
  C. Evil twin
  D. Rogue AP
  D. Rogue AP